WDA学习(24):Context Menu使用

1.17 UI Element:Context Menu使用

本实例测试创建Context Menu.

1.创建Component,View: V_CONTEXT_MENU;

2.创建Context节点；

创建Node:NODE_TV,Cardinality:1..1;

创建Attribute:TV1,类型String;

创建Node:NODE_ATTR，Cardinality：1..1;

创建Attribute:MENU_CHK, 类型WDY_BOOLEAN;

创建Attribute:MENU_RADIOBTN,类型WDR_DEMO_FRUIT；

创建Attribute:MENU_CHK1,类型WDY_BOOLEAN；

3.创建Layout页签；

创建UI Element:MenuBar，ID：MENUBAR;

创建UI Element:Menu,ID:MENU;

创建UI Element:Menu,ID:MENU_SUB1;

创建UI Element:MenuActionItem,ID: MENU_CHG,绑定Action: MENU_CHG;

创建UI Element:MenuActionItem,ID: MENU_ADD,绑定Action：MENU_ADD；

创建UI Element:MenuSeparator,ID:MENU_SEP1;

创建UI Element:Menu,ID:MENU_SUB2;

创建UI Element:MenuRadioButton,ID:MENU_BTN,绑定Action: MENU_SEL,selectedKey绑定Context的Attributes: V_CONTEXT_MENU.NODE_ATTR.MENU_RADIOBTN;

创建UI Element:MenuRadioButton,ID:MENU_BTN1,绑定Action:MENU_SEL,selectedKey绑定Context的Attributes: V_CONTEXT_MENU.NODE_ATTR.MENU_RADIOBTN;

创建UI Element:MenuSeparator,ID:MENU_SEP2;

创建UI Element:Menu,ID:MENU_SUB3;

创建UI Element:MenuCheckBox,ID:MENU_CHK,绑定Action:MENU_TOG,checked绑定Context的Attributes: V_CONTEXT_MENU.NODE_ATTR.MENU_CHK;

创建UI Element:MenuCheckBox,ID:MENU_CHK1,绑定Action:MENU_TOG,checked绑定Context的Attributes: V_CONTEXT_MENU.NODE_ATTR.MENU_CHK1;

创建UI Element:TextView,text绑定Context的Attributes: V_CONTEXT_MENU.NODE_TV.TV1;

4.创建Method页签，实现Action方法；

实现Action: MENU_ADD,Menu选择Add；

代码实例：

  DATA:lo_node TYPE REF TO if_wd_context_node.
  DATA:lo_element TYPE REF TO if_wd_context_element.

  lo_node = wd_context->get_child_node( wd_this->wdctx_node_tv ).
  lo_element = lo_node->get_element( ).
  lo_element->set_attribute(
    EXPORTING
      name = 'TV1'
      value = 'Menu:add'
  ).

实现Action：MENU_CHG，Menu选择change;

  DATA:lo_node TYPE REF TO if_wd_context_node.
  DATA:lo_element TYPE REF TO if_wd_context_element.

  lo_node = wd_context->get_child_node( wd_this->wdctx_node_tv ).
  lo_element = lo_node->get_element( ).
  lo_element->set_attribute(
    EXPORTING
      name = 'TV1'
      value = 'Menu:change'
  ).

实现Action：MENU_SEL，Menu选择Radio Button；

代码实例：

  DATA:lo_node TYPE REF TO if_wd_context_node.
  DATA:lo_element TYPE REF TO if_wd_context_element.
  DATA:lo_event TYPE REF TO cl_wd_custom_event.
  DATA:lv_string TYPE string.
  lo_event = wdevent.
  lv_string = lo_event->get_string( name = 'KEY' ).
  lv_string = 'Menu:radio button,' && lv_string.
  lo_node = wd_context->get_child_node( wd_this->wdctx_node_tv ).
  lo_element = lo_node->get_element( ).
  lo_element->set_attribute(
    EXPORTING
      name = 'TV1'
      value = lv_string
  ).

实现Action：MENU_TOG，CheckBox选择事件；

代码实例：

  DATA:lo_node TYPE REF TO if_wd_context_node.
  DATA:lo_element TYPE REF TO if_wd_context_element.
  DATA:lo_event TYPE REF TO cl_wd_custom_event.
  DATA:lv_id TYPE string.
  lo_event = wdevent.
  lv_id = lo_event->get_string( name = 'ID' ).
  lv_id = 'Menu:checkbox' && lv_id.
  lo_node = wd_context->get_child_node( wd_this->wdctx_node_tv ).
  lo_element = lo_node->get_element( ).
  lo_element->set_attribute(
    EXPORTING
      name = 'TV1'
      value = lv_id
  ).